"This brand-spanking-new site aims to provide an uncommonly inviting place to teach and be taught. Instructors can upload video on any subject — be it salsa dancing or making glogg — then divvy it into lessons. Unlike YouTube, Curious lets teachers choose to charge for lessons, features an oversized playback window and generally feels friendly and constructive. There are no creepy comments from anonymous YouTubers here, and the site’s proprietors currently approve teachers and eyeball content to ensure that these online classes are, well, classy."

"Using audio clips, Forvo tells you how to pronounce things. It depends on user submissions, so it’s only as good as its community, but that also means that all kinds of words are included. There are words you’d find in a dictionary (like, say, emeritus) but also names and places related to current events. Don’t know how to pronounce that Russian leader’s name? Well, look up Medvedev. Users can vote on good and bad pronunciations, which should help weed out inaccuracies and anomalies of the sort you find at sites like Urban Dictionary."